1997 BMW Z3 rough idle wont full throttle up


Asked by Jul 31, 2016 at 11:13 PM about the 1997 BMW Z3 2 Dr 1.9 Convertible

Question type: Maintenance & Repair

I have a 1997 BMW Z3 that has a rough idle and will start to die when I throttle up.  It is also running hot when it idles for a while.  I think it may be the catalytic converter because I can hear something loose when it idles low.  Is there a way to check the catalytic converter to see if that is the problem?  When I first start it idles rough then after a short period of time, it begins to idle better but when I throttle up, it acts like it is going to die.  Any suggestions would be greatly appreciated.

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